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WWUS20 KWNS 292044

SEL2

SPC WW 292044

VAZ000-WVZ000-010300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 52

NWS STORM PREDICTION CENTER NORMAN OK

345 PM EST WED FEB 29 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN VIRGINIA

       SOUTHEAST WEST VIRGINIA



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 345 PM UNTIL

1000 PM EST.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF WHITE

SULPHUR SPRINGS WEST VIRGINIA TO 45 MILES SOUTH SOUTHWEST OF

DUBLIN VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS.



OTHER WATCH INFORMATION...CONTINUE...WW 48...WW 49...WW 50...WW

51...



DISCUSSION...A COMPLEX BOWING STRUCTURE HAS RECENTLY EVOLVED OVER

SRN WV WITHIN A MARGINALLY UNSTABLE BUT STRONGLY SHEARED

ENVIRONMENT.  DOWNSTREAM AIR MASS ACROSS THE WATCH AREA WILL

CONTINUE TO DESTABILIZE LATE THIS AFTERNOON INTO EVENING...OWING TO

THE PRESENCE OF A 50+KT WSWLY LLJ WHICH IS ENHANCING HEAT AND

MOISTURE FLUXES.  AS SUCH...EXPECT ABOVE-MENTIONED MCS TO ADVANCE

EWD WITH ATTENDANT THREATS FOR DAMAGING WINDS AND PERHAPS A COUPLE

OF TORNADOES.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350.

MEAN STORM MOTION VECTOR 26050.





...MEAD

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